Genuine Floyd Rose tremolo bridge springs. Set of 3. I'm selling these because I replaced them with springs from another company. I removed them from a guitar I just bought, so they're almost unused. They're a bit stiff, suitable for rock. If you feel your current springs are too soft, you can easily change the feel of your playing just by swapping the springs, so give it a try. Also, your tuning will become unstable if the springs deteriorate, so consider replacing them regularly!